Improvement in machines for making bricks and tiles



N, PETERS, PHOTO-LITHQGRAPHER, WASHINGTUN. D C,

anni time ISAAC C. BRYANT, O F WASHINGTON, DISTRICT OF COLUMBIA.

Letters Patent No. 113,847, dated April 18, 1871 antedated April 8,1871.

IMPROVEMENT IN MACHINES FOR MAKING BRICKS AND TILES.

The Schedule referred to in these Letters Patent and making pari: of thesame.

this specification, in which- Sheet 1 Figure l represents a longitudinalsection of the machine for making bricks and drain-pipes. y Figure 2 isa front elevation and view of the same. Figure 3 represents themonth-piece and mold for ,the pipe and collar.

Sheet 2- Figure 4 represents a longitudinal section of the front part ofthe machine, showing the mouth-piece and cut-off of the bricks ordrain-pipes.

Figure 5 is a side elevation of the vertically-operating knife andcut-ofi' of the bricks and pipes.

Figure 6 represents a longitudinal section of the mouth-piece, showingthe mold for the bricks and pipes.

Figure 7 is a front view of the brickemold.-

Figure 8 exhibits a longitudinal section and front view ofthe mold formaking the drain-pipes.

The nature of my invention consists in theJ arrangement and combinationof a double-danged screw in front, a single-flanged screw in the rear,(on thesame shatr't,) with oblique cutters operating around the rearscrew, but in opposite direction, and iced-rollers above the knives;also, the shape and construction of the mouth-piece, forming and moldingthe collar with the pipe at the same operation, with the dovetail piecesliding on the brick-mold and the mouth-pieces ofthe pipe-molds slidingin dovetail guides in front of the dovetail plate; also, theconstruction of the knife or cutter operating'in a reciprocating motion,by which the bricks and pipes are eut olf at the mouth-of the machinewith accuracy and facility; also, the movable Acylinders surrounding thedouble screw, that is attached by a bayouet-1ock so as to be easilyremoved and a larger or smaller cylinder attached to the headplate ofthe machine sc as to mold large or small pipes; also, a revolving corein front ci' the double screw.

The object of my invention is to manufacture bricks or draimpipes by onemachine, tempering its own clay, and enabling meto manufactnieterra-cotta pipe and common drain-pipe with thevsame facility, thedouble screw giving increased pressure uponl the clay, while the collaris molded at the same time with the pipe.

To enable others skilled in the art to make and use my inventiomI willproceed to describe its construction and operation, asfollows:

A represents the upright frame or iron plates that support the devices.

B represents thehopper at top,in which the clay is put. l

G, the cylinder or lower part of the hopper that the rollers D, knivesE, and screw F operate in.

The rollers D D are operated by toothed wheels 'Gr G at the end. Thepinion H that is geared into one of the toothed wheels, G, drives thetwo oblique knives, I I, that are attached to a circular plate, J, atone end and a ring, K, at the other end, the knives workingindependently of the main axis L, a'nd in an opposite direction from thesingle-flanged screw M, so that there is a free passage for the clay.

The front end of the axis L operates in an upright support or post, N,as a bearing, which bearing is between the single-flanged screw M andthe doubleflanged movable screw P in front. p

In front of the double-flanged screw P is the core Q that is screwedinto the end of the main shaft L infront of the screw P, and this coreforms the inside oi' the pipe and its collar.

The outside of the core R, as shown atiig. 3, is made in two halves,with abuckle'or fastening, S, at top, and au adjustable rght-and-leithand screw, T, below, for the purpose of freeing the pipe and collarwhen molded. This mold It also slides to either side in a slotgU, be-

llow, suliciently to clear the pipe,aud is held securely on each hall'by two pins, V V, ou the outer cylinder W, the .cylinderW bcing'movableand attached to the front of the hopper@ by a bayonet-joint, X.

`The mouth-piece `Y for making bricks lits onto the front of thecylinder W also by a bayonet-joint, and

the plate Zl that holds the molds Z'LZL forV making" pipes is fitted bya dovetail to the front of the inouth-- piece Y, as shown at gs. 6 and8. The molds for making pipes Z2 Z" lit into the .plate Zl in adovetail, the plate Zl being made ot' metal and with dovetails on thefront and back sides so as to be movable when required,and the plate hastwoor more apertinr'es, ac-

cordingito the number of molds to be used for making two or more pipesat the same time.

The knife a that cuts oli` the brick or pipe as it passes from the mouthof the machine is a horizontal knife at the lower side of .a squareupright frame, b, that is attached to a cross horizontal pitman, c, thathas a reciprocating motion, the pitman c being attached to cranks (l dof the toothed wheels e e that give the pitman a lateral, upward, anddownward movement; and the knife a being permanent] y fastened to thecenter of the pitman O, receives its lateral, upward, and downwardmotion, and as it descends in a perpendicular line to ont olf the brickor pipe passing from the mouth-piece, it moves with the pipe, cutting itperfectly straight at each downward ont.

The knife is operated by band-wheel, f, and belt, moving regularly withthe band-wheel and belt that drive the machine. p

The center-wheel g, as shown at iig. 5, is to give the same motion towheels e e. The knife a operates at right angles with the month oi' themachine.

h andj represent a table and apron, intended to be used for carryingoithe bricks 'and pipes when molded.

As the clay is passed through the hopper B it is carried, between thehorizontal rollers D D,to the tem.

constructed and operating as herein described, and for the purposes setforth.

2. The combination of the case K, removable cyled and arranged :is shownand described.

double dovetailed plate Zl and Z3 and molds Z2, conscribed.

4.' The combination of the knife a and frame b with the crank d, wheelg, and pulley j', when arranged and operated as herein shown anddescribed, for the purpose set forth.

5. The combination of the cylinder W, provided when arranged andoperating as herein shown and for the purpose specified.

y p I. G. BRYANT.

Witnesses:

J FRANKLIN REIGART,

EDM. F. BROWN.

inder W, screw P, mold R, and core Q, all constrnet' 3. The combinationof the month-piece Y with the structed and arranged substantially asshown and dey with the bayonet-lock X, with the removable screw P,

